(a) An award, compromise, or settlement of a claim under section 2672 of Title 28, United States Code, and this subpart in excess of $25,000 may be effected only with the prior written approval of the Attorney General or his designee. For the purpose of this paragraph, a principal claim and any derivative or subrogated claim shall be treated as a single claim.

(b) An administrative claim may be adjusted, determined, compromised, or settled only after consultation with the Department of Justice when, in the opinion of the General Counsel or his designee:

(1) A new precedent or a new point of law is involved; or

(2) A question of policy is or may be involved; or

(3) The United States is or may be entitled to indemnity or contribution from a third party, and the Department is unable to adjust the third party claim; or

(4) The compromise of a particular claim, as a practical matter, will or may control the disposition of a related claim in which the amount to be paid may exceed $25,000.

(c) An administrative claim may be adjusted, determined, compromised, or settled only after consultation with the Department of Justice when the Department is informed or is otherwise aware that the United States or an officer, employee, agent, or cost-type contractor of the United States is involved in litigation based on a claim arising out of the same incident or transaction.